Seeed studio Grove Base Shield for Arduino

seedstudio
https://wiki.seeedstudio.com/RS232_Shield/

feature
There are 16 on-board Grove connectors including 4 x Analog, 7 x Digital, 1 x UART, 4 x I2C. Apart from the rich Grove connectors, on the board you can also see an RST button, a green LED to indicating power status, ICSP pin, a toggle switch and four row of pinouts. There is no need to explain the RST button and LED, but you really need to know below two features that are very important for your projects.
Board Compatible:
Arduino Uno
Seeeduino V4.2
Arduino Mega / Seeeduino Mega
Seeduino LoraWan
Arduino Leonardo / Seeeduino Lite
Arduino 101
Arduino Due
Intel Edison
Linkit One